Sowing seeds is a comparatively cheap method to supply garden plants. In Pennsylvania, you’ll be able to sow most annual seeds outdoors after the final frost date for the reason that rising season is lengthy sufficient for them to germinate, develop to maturity, and blossom before temperatures drop to close to-freezing ranges. If you want to have plants that bloom earlier, you can even sow seeds indoors in early spring and transplant outdoors after the last frost date. Most annuals develop from seed. Seed companies fastidiously choose seed that originates from plants with superior traits. Standard seed refers to all seed used for sowing in annual flower beds and gardens. This seed is fastidiously chosen and cleaned to take away any weed seeds or debris. Dressed seed is dusted with a fungicide or a mixture of insecticide and fungicide earlier than packaging. Pelleted seed is very small seed that is coated with a clay mixture for easier dealing with.